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Controlling the Loss of Entanglement

Jon Grice, University of California, San Diego

(Session 5 : Friday from 5:00-7:00)

Abstract. We present an open-loop discrete time control technique to slow down the loss of entanglement of a two qubit model (the X-states studied by Eberly and Yu) undergoing specific local noises. We find the optimal policy the controller must follow to maximize entanglement after N time steps in terms of the initial state.